Insist
Part of speech: verb
Definition: (with on or upon) to hold up a claim emphatically. (with on or upon) to demand continually that something happen or be done.
Example sentence: Let us more and more insist on raising funds of love, of kindness, of understanding, of peace. Money will come if we seek first the Kingdom of God - the rest will be given.
Importune
Part of speech: verb
Definition: Harass with persistent requests.Approach to offer one's services as a prostitute.